Product Overview
Our Silicon Slag is a cost-effective alternative to pure silicon metal, widely used in steelmaking and foundry industries as a deoxidizer and alloying agent. Produced from high-grade silicon residues, it offers excellent performance at a fraction of the cost.
Si Content: 45% – 65% (customizable)
Size: 10–50mm, 10–100mm, or as required
Color: Silver gray / dark gray metallic luster
Origin: China
Key Features
| Feature | Benefit |
|---|---|
| High silicon recovery rate | Reduces overall consumption per ton of steel |
| Low impurity levels | Improves final product quality |
| Great price point | Cuts raw material costs by 20–30% vs. pure silicon metal |
| Stable supply | Available year-round in bulk quantities |
| Custom sizing | Fits your furnace or ladle requirements |
Typical Applications
Steel deoxidation – Removes oxygen efficiently, reducing defects
Alloy additive – Adjusts silicon content in molten steel
Foundry industry – Improves casting fluidity and strength
Ferroalloy production – Used as a silicon source in blending
Specifications (Standard Grade)
| Parameter | Value |
|---|---|
| Silicon (Si) | ≥ 55% |
| Carbon (C) | ≤ 3.5% |
| Sulfur (S) | ≤ 0.1% |
| Phosphorus (P) | ≤ 0.05% |
| Moisture | ≤ 0.5% |
Other grades (45%, 60%, 65%) available upon request.
Case Study: Reducing Steelmaking Costs for a Mid-Sized Mill
Background
A steel mill in Southeast Asia producing 80,000 tons of construction steel per month was using pure silicon metal (99% Si) as a deoxidizer. Their monthly silicon cost was approximately $240,000, putting pressure on margins amid rising raw material prices.
Challenge
The mill wanted to reduce deoxidation costs without compromising steel quality or production efficiency.
Solution
We proposed replacing 70% of their pure silicon metal with 55% silicon slag, adjusting the blend ratio to maintain equivalent deoxidation performance.
Implementation
Original blend: 100% pure silicon metal (grade 99%)
New blend: 70% silicon slag (55% Si) + 30% pure silicon metal (99% Si)
Results (Monthly, based on 80,000 tons steel output)
| Metric | Before | After | Improvement |
|---|---|---|---|
| Silicon material cost | $240,000 | $168,000 | -30% |
| Deoxidation efficiency | 92% | 91% | Negligible |
| Steel rejection rate | 1.8% | 1.9% | Within tolerance |
| Monthly savings | - | $72,000 | $864,000/year |
Customer Feedback
"Switching to silicon slag saved us over $70,000 per month with no noticeable drop in steel quality. The product performs well, and delivery has been reliable."
- Purchasing Manager, Southeast Asia Steel Mill
Why Choose Our Silicon Slag?
Factory direct pricing – No middlemen, better value
Strict quality control – Each batch tested before shipment
Fast delivery – 15–20 days after order confirmation
Technical support – We help you optimize blend ratios
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